Dictionary Home » Dictionary Definitions » neutron

neutron

The definition of a neutron is a nucleon with no charge.

(noun)

An example of a neutron is something that turns into a proton and electron.

See neutron in Webster's New World College Dictionary

noun

Particle Physics an uncharged nucleon having a mass of c. 1.675×10 kg (c. 939.5729 MeV/c, c. 1,839 times the mass of an electron): a free neutron, as in nuclear fission, has a half-life of c. 14.8 minutes, is readily absorbed by a nucleus, and decays into a proton, an electron, and a neutrino

Origin: neutr(al) + -on

See neutron in American Heritage Dictionary 4

noun Abbr. n

An electrically neutral subatomic particle in the baryon family, having a mass 1,839 times that of the electron, stable when bound in an atomic nucleus, and having a mean lifetime of approximately 1.0 × 10³ seconds as a free particle. It and the proton form nearly the entire mass of atomic nuclei. See Table at subatomic particle.

Origin:

Origin: neutr(al)

Origin: + -on¹

Learn more about neutron

neutron Culture

neutron medical definition

neutron science

neutron in a sentence

link/cite print suggestion box